<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>ifTest4.html</title>
<script src='../js/ifTest4.js'></script>
</head>
<body>
<form name='frm'>
	<input type='text' name='su1'/>
	<input type='text' name='oper' size='4'/>
	<input type='text' name='su2'/>
	<p/>
	<input type='button' value='확인' id='btn'/>

</form>
<script>ifTest();</script>
</body>
</html>